# Observation of the decay B ¯ s 0 → χ c 2 K + K − ${\overline{B}}_s^0\to {\chi}_{c2}{K}^{+}{K}^{-}$ in the ϕ mass region

06 September 2018

Abstract: The B ¯ s 0 → χ c 2 K + K − ${\overline{B}}_s^0\to {\chi}_{c2}{K}^{+}{K}^{-}$ decay mode is observed and its branching fraction relative to the corresponding χ c 1 decay mode, in a ±15 MeV /c 2 window around the ϕ mass, is found to be

Published in: JHEP 1808 (2018) 191